Photo: Armpits Are "Rain Forests" for Bacteria, Skin Map Shows



Like a dune-rippled desert, the skin of a human foot (shown in an undated picture) is just one of the body's "habitats." Each skin region boasts a unique and surprisingly diverse array of microbes, according to a "topographic" skin map released in May 2009.

Photograph by Sarah Leen/NGS


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